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August Weather in Sunnyside, United States

Last updated: June 24, 2025

In August, the average temperature in Sunnyside, United States is a warm 26°C (79°F). However, be prepared for some variability, as temperatures can dip as low as 9°C (48°F) and soar up to a sweltering 42°C (108°F). Expect a touch of humidity with an average of 63%, and just a hint of rain, with 5 mm (0.2 in) of precipitation spread across 1 day.

August Temperature in Sunnyside

In August in Sunnyside, the average temperature is 26°C (79°F). Maximums can reach 42°C (108°F), while minimums can drop to as low as 9°C (48°F). Be prepared for a wide range of temperatures when traveling during this time.

August Weather in Sunnyside: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Sunnyside, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sunnyside, August typically has an average temperature of 26°C (79°F), with highs reaching up to 42°C (108°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec343645546573807968534235
Data source: Temperature data for Sunnyside generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Sunnyside

In Sunnyside in August, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.

August Precipitation Trends in Sunnyside

The chart displays monthly precipitation patterns in Sunnyside, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Sunnyside, August typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec43432524167159263135
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Sunnyside

In Sunnyside in August humidity is 63%. With average temperature 26°C (79°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls or exploring local attractions, though be prepared for a slight stickiness that may prompt you to seek shade or refreshing beverages along the way.

August Average Humidity in Sunnyside

This chart illustrates the average monthly humidity levels in Sunnyside, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Sunnyside is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sunnyside

In Sunnyside in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sunnyside.

Maximum UV Index Levels in Sunnyside for August

The chart shows the monthly maximum UV Index (UVI) for Sunnyside in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Sunnyside typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23569101097532
Data source: Sunnyside August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Sunnyside Compares to Other Months

Weather in Sunnyside varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Sunnyside, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sunnyside, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)43 mm (1.7 inches)86%low
February Weather2°C (36°F)43 mm (1.7 inches)86%moderate
March Weather7°C (45°F)25 mm (1.0 inches)87%moderate
April Weather12°C (54°F)24 mm (1.0 inches)84%high
May Weather18°C (65°F)16 mm (0.6 inches)81%very high
June Weather23°C (73°F)7 mm (0.3 inches)82%very high
July Weather27°C (80°F)1 mm (0.0 inches)79%very high
August Weather26°C (79°F)5 mm (0.2 inches)63%very high
September Weather20°C (68°F)9 mm (0.4 inches)62%high
October Weather12°C (53°F)26 mm (1.0 inches)83%moderate
November Weather5°C (42°F)31 mm (1.2 inches)89%moderate
December Weather1°C (35°F)35 mm (1.4 inches)88%low

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